[ubuntu] Inertia now working on external touchpad (on Desktop)

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Inertia started working for me after today's updates. It's very noticeable when trying two-finger slide up and down on chromium using an external Logitech wireless touchpad on a desktop.
It's good news. However, it is still impossible to adjust a touchpad acceleration/sensitivity or configure gestures (2/3/4 fingers slides, actions for clicks on specific touchpad-areas, etc) via GUI since the "Touchpad" tab is disabled on on g-c-c/"Mouse and Touchpad" on Desktops. But even if it was enabled, it is designed for 90's touchpads.
If anyone uses (or plans to try) a Touchp
(Hardware)

My notebook is an ASUS model X551CA running Ubuntu 12.04 64 bit.
I don't use a mouse, I'm using my touchpad as a mouse, however, there is no "touchpad" tab in "mouse and touchpad" of the "system settings".
So I can't use very useful touchpad functions such as 2 finger scrolling and disable touchpad while typing.